canon-toasts

canon-toasts is a skill for Claude Code, Codex from Dragoon0x/canon. It costs 86 tokens per session (2,059 once invoked), scanned A, original, MIT.

A guide to temporary messages such as toast notifications, snackbars, banners, and inline alerts. It explains which kind of message fits different situations and how to make temporary feedback accessible.

In plain words
What is it for?
Designing or reviewing success messages, background-operation feedback, non-blocking errors, undo prompts, and notification placement.
Why use it?
It prevents important errors or instructions from being hidden in messages that disappear too quickly. It also helps avoid using toasts for actions that need confirmation or lasting attention.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Designing or reviewing success messages, background-operation feedback, non-blocking errors, undo prompts, and notification placement.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/dragoon0x/canon/canon-toasts
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Dragoon0x/canon --skill canon-toasts
Clone the repo
git clone --depth 1 https://github.com/Dragoon0x/canon

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for canon-toasts

README.md
[![agentmods](https://agentmods.dev/badge/skills/dragoon0x/canon/canon-toasts/github.svg)](https://agentmods.dev/skills/dragoon0x/canon/canon-toasts)
Your own site
<a href="https://agentmods.dev/skills/dragoon0x/canon/canon-toasts"><img src="https://agentmods.dev/badge/skills/dragoon0x/canon/canon-toasts/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for canon-toasts

Your own site · 80×15
<a href="https://agentmods.dev/skills/dragoon0x/canon/canon-toasts"><img src="https://agentmods.dev/badge/skills/dragoon0x/canon/canon-toasts.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,059 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00086 $0.02059
Opus 5.5 $0.00034 $0.00824
Sonnet 5.5 $0.00017 $0.00412
Haiku 4.5 $0.00009 $0.00206

Measured 2mo ago against content hash 8000032ba117, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

canon-toasts scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

source/skills/canon-toasts/SKILL.md · 230 lines

How it starts

The opening of the file, as written. The whole thing — 230 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CANON · Toasts

A toast is cheap feedback for safe actions. It is not the answer to every UI question. Before reaching for a toast, ask whether an inline message, banner, or silence would serve better.

When to use a toast

Use a toast Don't use a toast
Confirm a reversible action with optional Undo Confirm a destructive action (use modal)
Show a background success ("Message sent") Show a critical error needing action (use inline or modal)
Report completion of an async operation Communicate persistent state (use banner)
Flash a brief info message ("Copied to clipboard") Give instructions ("Now do step 2")
Surface a non-blocking error ("Couldn't save draft") Confirm something users must definitely see

Rule of thumb: toasts should never interrupt and never be required for the user to see. If users must see it, it's not a toast.

Toast vs banner vs inline vs modal

Pattern Persistence Location Use
Toast Auto-dismiss Edge of viewport Transient feedback
Banner Stays until action or dismissed Top of page/section Persistent system state (you're offline, your subscription expired)
Inline Attached to related element Within flow Validation errors, field-level hints
Modal Blocks until resolved Overlay Critical decisions

Wrong pattern picks waste attention. Offline? Banner, not toast. Form field error? Inline, not toast.

Duration

Toast length Duration
Short (1–4 words) 3 seconds
Default (short sentence) 4 seconds
With action (has Undo/Retry button) 5–7 seconds
Persistent (on user demand) Until dismissed

The timer pauses on hover and focus — critical for screen reader + motor-impaired users.

Material snackbar default is 4 seconds without action, 10 seconds with action. Modern practice trends shorter (4–6).

Position

Position Use
Bottom-center Mobile, single-column apps
Bottom-right Desktop web, dashboards
Top-right Desktop apps that use bottom for primary content
Top-center Safari mobile back button conflict, avoid

Read the full file on GitHub · 230 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 230 lines · 86 tokens per session scan A 8000032ba117

Subscribe to this mod's changes

canon-toasts is a skill published in the GitHub repository Dragoon0x/canon (6 stars, last pushed 6mo ago), licensed MIT. It adds 86 tokens to every session and 2,059 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Related

canon-toasts compared with skills from other repositories

canon-toasts next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
canon-toastsDragoon0x/canonSkill66mo agoMITA86Claude Code, Codex
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a11y-auditgreglas75/zuvoSkill73d agoMITA147Claude Code
axe-audittonone-ai/tononeSkill7723d agoMITA47Claude Code
accessibility-compliance-accessibility-audit-v2diegosouzapw/awesome-omni-skillsSkill1704mo agoMITA76Claude Code